HomeAuthorsPosts by Sundareswaran Iyalunaidu

Sundareswaran Iyalunaidu

With over 24 years of dedicated experience, I am a seasoned professional specializing in the commissioning, maintenance, and installation of Electrical, Instrumentation and Control systems. My expertise extends across a spectrum of industries, including Power stations, Oil and Gas, Aluminium, Utilities, Steel and Continuous process industries. Tweet me @sundareshinfohe
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Control Valve

Control Valve Passing Even When Fully Closed: Causes, Symptoms, Troubleshooting and Solutions

Table of ContentsUnderstanding Control Valve Passing and Why It HappensWhat Does It Mean When a Control Valve Is Passing?How a Control Valve Should Close Under Normal ConditionsCommon Symptoms of a Passing Control ValveMajor Causes of Control Valve PassingControl Valve Shutoff Performance by Valve TypeHow...
Instrumentation Calculators

Instrument Range Calculator | Calculate Span, Rangeability, Turndown Ratio & Calibration Range

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Instrumentation

Beyond Zero: Understanding the Dead Zero Problem in Industrial Analog Signals

Table of ContentsAnalog Signals in Industrial Process ControlUnderstanding Analog Signals in Process InstrumentationCommon Process...
Engineering

Hybrid Level Measurement Selection Procedure for EPC Instrumentation Engineers

Table of ContentsHybrid Level Measurement in EPC ProjectsWhat Is Hybrid Level Measurement in Instrumentation...
Instrumentation Calculators

Coriolis Mass Flow Calculator – Complete Guide for Instrumentation & Process Engineers

Coriolis Mass...
Instrumentation Questions

Refinery Instrumentation Quiz – Advanced Level

This advanced refinery instrumentation quiz is for people who are already experienced in developing,...
Automation

Why Engineers Still Trust the 4-20 mA Signal in Automation Systems

Table of ContentsWhy the 4-20 mA Signal Continues to Dominate Modern PlantsUnderstanding the 4...
Installation Procedure

Grounding and Bonding in Instrumentation and Control Systems

Table of ContentsPractical Guide for Installation, Commissioning and Maintenance Engineers in Process IndustriesWhy Grounding...
Fire & Gas

Method Statement for Addressable Fire Alarm System Installation, Testing and Commissioning as per NFPA 72

Table of ContentsAddressable Fire Alarm Systems in Process IndustriesScope of Work for Addressable Fire...
Instrumentation Calculators

Control Valve Noise Prediction Calculator – IEC 60534 Based Engineering Tool

Table of ContentsControl Valve Noise in Process IndustriesControl Valve Noise Prediction CalculatorWhat Is a...
Instrumentation Questions

Top 25 Essential MCQ for Liquid Analyzer Instrument Technician Interview in Process Industries

This technical quiz is just for instrumentation technicians, commissioning engineers, and maintenance experts that...
Engineering

Essential Checklist for Selecting the Right Solenoid Valve for Your Application

Table of ContentsPractical EPC Engineering Method for Instrumentation Design EngineersWhy Solenoid Valve Selection Is...
Instrumentation Calculators

Instrumentation Panel Heat Load Calculator – Complete Engineering Guide for Panel Cooling Design

Table of ContentsCritical Role of Heat Load Calculation in Instrumentation PanelsInstrumentation Panel Heat Load...
Valves

Understanding 3/2-Way vs 5/2-Way Solenoid Valves (SOVs)

Table of ContentsWhy solenoid valves are considered final control elementsWhat Is a 3/2-Way Solenoid...
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Latest articles

Control Valve

Control Valve Passing Even When Fully Closed: Causes, Symptoms, Troubleshooting and Solutions

Table of ContentsUnderstanding Control Valve Passing and Why It HappensWhat Does It Mean When...
Instrumentation Calculators

Instrument Range Calculator | Calculate Span, Rangeability, Turndown Ratio & Calibration Range

<!-- Google Fonts (safe to keep as a inside a WordPress "Custom HTML"...
Communication

Profibus PA Communication Problems: Causes, Symptoms and Troubleshooting Guide

Table of ContentsOverview of Profibus PA Communication Challenges What is Profibus PA Communication?Definition of Profibus...
Engineering

FAT vs SAT vs SIT: Three Critical Tests That Determine Whether Your Plant Is Truly Ready for Startup

Table of ContentsIntroductionPurpose of Factory Acceptance TestingFactory Acceptance Test ObjectivesFactory Acceptance Test ObjectivesPLC FAT...